Often I create a background and then layer the ink strokes on top, but in this case the process was reversed. I was only working on ink strokes, thinking that they would just be black on white, but on examining this one, thought it might look good combined with a different color. So the red was layered around and, in some places, over the black ink. I like the effect because it suggests that the ink stroke is emerging from the swirling and somewhat chaotic red.
Prints and other fun stuff here